[Dual DAC Dual Crystal Portable USB DAC] Equipped with 2 of ES9219 DAC chips and Independent FPGA-based dual independent crystal oscillator reclocking, A solid foundation for good sound quality. Supporting up to PCM768kHz/32bit, DSD256 (native) decoding, edging on professional HiFi player in decoding specifications
[Professional audio architecture] The FC4 headphone amp dac contains the same level of circuitry as a professional full-size HiBy digital audio player, which is designed solely for high definition lossless music, playing back every detail of the original music.
[High driving power usb dac dongle] 340mW+340mW @32Ω for a USB dongle, Easily drive all your HiFi earphones and even some full-size headphones. It will let your earphones handle all music styles with more aplomb than ever, a higher sense of energy without sacrificing any fine control or detail.
[MQA 16X unfolding] The HiBy FC4 MQA dongle includes MQA full decoding technology, which enables you to play back MQA audio files and streams by a factor of 16x.*The smartphone must be using apps supporting bitperfect and MQA (e.g. HiByMusic, TIDAL), in order for MQA unfolding to occur with the HiBy FC4 connected via USB.
[Plug and Play] No charging required, effective way to improve Sound quality. Driver-free for Android / iOS / Mac / Windows 10 and up, plug-and-play, For versions below Windows 10, need to download the driver.(For iOS system devices need to purchase Lightning to Type-C OTG cable)
3.5mm SE and 4.4mm balanced brought together, All-metal body, Hardware volume buttons / hardware volume, RGB indicator light